Discovered when putting in "allowed hosts" on the NSCA server, you can't have a space. I deleted the space and it worked like a charm. Curtis LaMasters <a href="http://www.curtis-lamasters.com">http://www.curtis-lamasters.com</a> <a href="http://www.builtnetworks.com">http://www.builtnetworks.com</a> <div class="gmail_quote">On Sat, Feb 7, 2009 at 2:24 PM, Michael Medin <<a href="mailto:michael@medin.name">michael@medin.name</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi, The error is as far as I can tell that the data sent from the NSCA server (when initializing) was either to long or (perhaps more likely) to short. In this case my guess would be that someone "closed" the connection when "it" were waiting for the data to be sent. Why that would be I am not sure, which platform are you on? // Michael Medin Curtis LaMasters skrev: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div></div><div class="Wj3C7c"> I'm so far unable to get this one figured out. No abnormal logs on the Nagios server but I get this on the client side: 2009-02-06 14:40:43: error:.\NSCAThread.cpp:177: <<< Failed to read header from: xx.xxx.xxx.50:5667 0: The operation completed successfully. Any idea what that means. I just installed this client today and have other clients with the same configuration working just fine. This is on a Windows Server 2003 SBS box. Curtis LaMasters <a href="http://www.curtis-lamasters.com" target="_blank">http://www.curtis-lamasters.com</a> <a href="http://www.builtnetworks.com" target="_blank">http://www.builtnetworks.com</a> </div></div> ------------------------------------------------------------------------ ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-<a href="http://p.sf.net/sfu/adobe-com" target="_blank">http://p.sf.net/sfu/adobe-com</a> ------------------------------------------------------------------------ _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net" target="_blank">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote> </blockquote></div>